Improvement in sash-fastenings



IINTTED STATES PATENT OFFICEo JOHN LYDY, OF GEORGE'IOWN, OHIO.

lIVlPROVElVIENT IN SASH-FASTENINGS.

Specification forming part of Letters Patent No. 55,131, dated May 29, 1866.

To all whom fit may concern:

Be it known that I, JOHN LYDY, of Georgetown, Brown county, Ohio, have invented a new and Improved Method of Supporting and Fastening Window-Sashes; and l do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, which are attached to and made part ot' this specitication, in which- Figure l is a front perspective view ot' the invention, and Fig. 2 is a vertical sretion. e

InFig. l., Ais the window-frame, B,thelower sash; B', the upper sash; O, serrated metallic plate attached to the side ot' the lower sash; O', serrated metallic plate attached to the side ot' the upper sash. D is a pawl screwed or pivoted into the window-frame, and which works into the serrated plate O. Dl is a pawl which works into the serrated plate C. a is aslnall spring operating' upon the pawl D so as to hold it against the serrated plate C. a is a similarspring operating upon the pawl Dl so as to hold it against the serrated plate O. t is a small metallic plate, with an opening or niche in it, fastened on the top ot' the lower sash, B, at the corner adjoining the upper end ot' the serrated plate O, into which the upper end of the pawl D hooks itseltl when the window-sash B is down. F is the window-strip.

In Fig. 2 the various parts of the invention are shown in projection, like parts being designated by like letters.

The construetionand opera-tion ot my invention are as follows:

The serrated plates O and O are made of any convenient and suitable metal, and are set into either side of the lower and upper sashes, B and B', as is most convenient, so that the teeth of the serrated edge are exposed to the action of the pawls D and D. The pawls are metallic, made ot' any convenient shape, and are fastened by a pivot or screw to the window-frame and workin an opening made for them on the inside of the windowstrip. The pawl D is provided with a hook at the upper end, which hooks into the plate i on the top ot' the lower sash, B, so as to hold it down.

rIhe sleirings a and a are made of wire or of any suitable material, and may be arranged in any convenient way to hold the pawls D and D to their places. rlhe platet'is metallic, and is set into the top of the lower sash, B, at the corner bythe pawl,and has an opening or niche in it tov receive the hook of the pawl D when the sash B is down.

When the window is closed, by pressing upon the outer extremity ot' the pawl D the hook is lil'ted oft'the plate t', and the lower sash, B, can be raised and rested at any height by letting' the pawl D t'all into any tooth ofthe serrated plate O. The upper sash may be lowered by raising the pawl D and letting it rest on any higher tooth ot the serrated plate O.

What I claim as my invention, and desire to secure by Letters Patent, is the following:

rlhe combination and arrangement ot' the pawls D and D', the serrated pla-tes@ and C', the plate t', and the springs a and a', substantially as herein described and shown, and for the purpose specified.

JOHN LYDY. Witnesses:

D. 0. PEARsoN, D. THOMAS. 

